GeoTIFF represents an effort by over 160 different remote sensing, GIS, cartographic, and surveying related companies and organizations to establish a TIFF based interchange format for georeferenced raster imagery.

Information and Support:

GeoTIFF Revision 1.0 Specification: This is the official release version of the GeoTIFF spec.
http://www.remotesensing.org/geotiff/geotiff.html: Primary GeoTIFF web site (this page).
http://geotiff.maptools.org/geotiff.html: Mirror GeoTIFF web site.
GeoTIFF-JAI and Extensible-TIFF-JAI: Niles Ritters projects for a Java GeoTIFF API.
ftp://ftp.remotesensing.org/pub/geotiff/: Current archive of GeoTIFF spec, EPSG/POSC tables, and libgeotiff source code. Mirrored at http://geotiff.maptools.org/dl
ftp://ftp.remotesensing.org/pub/geotiff/samples: Sample GeoTIFF files.
GeoTIFF FAQ written by Mike Ruth.
Unofficial Catalog of Projections and their parameters.
Parts 1 , 2 , 3 and 4 of a tutorial series by Daniel Denk on manipulating geotiff files primarily with regard to photoshop.

libgeotiff

Libgeotiff is an open source library normally hosted on top of libtiff for reading, and writing GeoTIFF information tags. The libgeotiff library is a sub-project of the MetaCRS project. Please contact warmerdam@pobox.com for more information, or to get involved.

Libgeotiff API: Partial documentation.
libgeotiff CVS repository is :pserver:cvsanon@cvs.maptools.org:/cvs/maptools/cvsroot (password is empty, module is geotiff/libgeotiff).
The most recent libgeotiff release is version 1.2.5 and is available from ftp://ftp.remotesensing.org/pub/geotiff/libgeotiff/libgeotiff-1.2.5.tar.gz or the corresponding zip.
The released libgeotiff source code and various other items are available in the download.osgeo.org download directories.
A contributed win32 gui for listgeo is available at ftp://ftp.remotesensing.org/geotiff/libgeotiff/listgeo_GUI.zip.
listgeo - utility program (distributed with libgeotiff) for dumping the metadata of a GeoTIFF file.
geotifcp - utility program (distributed with libgeotiff) for applying metadata to a TIFF file, making it a GeoTIFF file.

GeoTIFF Mailing List

A mailing list is currently active to discuss the on-going development of this standard, and the libgeotiff support library. Subscribe and unsubscribe on the web. Mail can be sent to geotiff@lists.maptools.org. Online threaded archives are available for viewing on the web.

The GeoTIFF mailing list is also available by NNTP at news://news.gmane.org/gmane.comp.gis.geotiff.

Comments? e-mail warmerdam@pobox.com (Frank Warmerdam)